Vacuum-cleaner.



E. ERICSSON & E. G. THOREBN.

VACUUM CLEANER.

APPLICATION FILED OUT. 6, 1909 Patented July 5, 1910.

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ATTY (1 more]; .s rarns PATENT OFFICE.

VACUUBLCLEANEB.

Specification of Application filed October 6 letter Pa n Patented July 5, 1910. 1909. Serial No. 521,322.

0 ell whom it may concern:

it known that; we, Ems ERIOSSON and Rare (t. "l'lnmsnx, citizens of the United ates of Amer residing at Zorcetster. in the cit-nut of Worcester and State of Massaeluisettgleii'e invented certain new and useful lxupruveuu-nts in Yarnuni-Cleaners, of which the following is a specification.

This invention relates to brushing and scrubbing: and particularly to a pneumatically operated cleaner.

An object of this invention is to provide a novel hollows for creating a partial vacuuni or su tion of air through a head of a pneumatic cleaner. the said bellows being of an oscillatory type whereby power applied to a handle will serve to rock the said bellows on a novel pivot arranged therein.

further object of this invention is to pr: 'ide a pneumatically operated cleaner in which hotel means are provided for prex sntihg particles of du t from gaining access in the be hnrs or from leaving a rolieelor i own in the turm ot' a drawer; the inimi ontemplating further provision of now. reini'm'cing devices surromuling apertures and the application of guards to said a an" arcs as heretofore indicated.

'ith the forqgning and other objects in view. the invention consists in the details of construction and in the arrangement and combiruition of parts to be hereinafter more fully set forth and claimed.

in describing the invention in detail, refmm will he had to the accompanying drawings forming part of this specification wh rein like charm-tors denote correspondins parts in the several views. in which-- Figure 1 illustrates a vertical sectional signed to connect: with a hose, 'pipe or the like to which the head is attached. Neither the pipe, hose nor head is shown in the drawing for it, will be understood that any form now commonly used may be employed in connection with this apparatus.

The upper wall of the casing is provided with two series of apertures 10, one series'of such apertures being on each side of the cenat'ter described) the said a erturcs'onering :rineans of communication etween-thc casing and the bellows. A strip of flexible material is applied to the top of the casing and is adapted to cover each set of apertures there. being one such strip A for each series of apertures and each strip is anchored to the casing in a manner to permit. air to be drawn through the apertures by the bellows. This strip also acts as a valve to prevent air being forced therethrough when the bellows is collapsed. hence as said bellows is operated air is drawn into the sides thereof altelnatelv and practically continuous sue- 5 t tum is nuuutained in the pipe during the operation of the bellows. The apertures are guarded by a screen 12, which may be of wire, gauze, or textile material of fine mesh operative to prevent passage of dust there- 'through, while permitting air to be drawn through the nip 1e 9. The screen 12 mav of! or means for accomplishing this result may be employed. The top 13 of the bellows has apertures 14 and each series of apertures is guarded by a strip of material LP similar to the strip A heretofore described and serving as a valve to guard the openings when the bellows is manipulated.

view or a cleaner cmbtxlyiug the invention; 1 'Ihe interior of the bellows is provided with Fig. illustrates a perspective view of a 1' with the handle broken away; Fig. .3 .usu itcs a detail sectional view showing the interior of the dust collector; and Fig. i illustrat s av detailview showing a fragmentof the bellows with a valve applied i J'i Q in these drawings 5 denotes a casing having a rearward extension 6, designed to prevent tilting of the casing when the bellows (to be hereinafter described) operated. The forward end of the casing is provided with a drawer 7 designed to contain sweepings'and the front of said drawer has an aperture 8, supplied witlra nipple 9, de-

a rib 15, which is stationary and acts as a. fulcrum for the rib 16 extending downwardly from the top of the bellows. The ribs 15 and 16 are each formed by two strips of material between which a flexible bin 6 member 17 is clamped and therefore as t e bellows is manipulated through the medium of the handle 18, the top of the bellows rocks and operates to draw air through the drawer heretofore described, which action of the air results in collecting dust throu 'h the medium of the pipe and the head. '1 e sides 11 of the bellows may be made-0f any appropriate material preferably in the form shown in Figs. 1 and 2 although We do not tral partition formed by ribs (to be hereitb' be held in place y the ribs B, although any wish a be limited with respect to the. de-

tails of construction of the sides of the bellows. r V

The front of the drawer is provided with apertures such as shown at 17 and the end of the casing is provided with sockets as shown at 18 designed to receive the anchoring screws 19 for the purpose of holding the drawer in its closed position, it being understood that the joint formed by the drawer and casing may be provided with packing 20 to make the same air-tight.

. From an'inspeetion of the drawing, it

I will be observed that when the handle is 1 the apertures in' its top.

Y i From the fact that the top of the casing and the top of the bellows have the valves thereon air may be drawn upwardly into the bellows through the apertures .10. but air cannot be forced from the bellows throughthe apertures 10 owing to the fact that the valves A guard said openings. -It

is furthermore apparent from an inspection I l l l tures, a bellows arrange comprising two strips of metal stationed on of thedrawin that air is permitted to escape from the ellows through the openings 14 andthat the valves 14 guard the open- 7 the drawer whereas the said bellows cannot operate to force air in the o posite direction. The rear end C of the rawer or dust container has a spring 21 on its outer surface which spring acts to hold the rear end of the said drawer tightly closed.

\Ve claim In a pneumatic sweeper,a casin having apertures, 11 screen for ardin t e apertherea ove, a rib the casing, a rib comprising two stri s of metal extending from the top of the be lows and coacting with the first mentioned rib, a flexible hinge interposed between the strips of the ribs, and a handle for oscillating the top of the bellows -i In testimony whereof, we afiix our signatures in the presence of two witnesses.

, ERIC ERICSSON.

. ERIC G. THOREEN. Witnesses:

O. A. Tare F RANK M KNIGHT. 

